Product prilled in mineral seal oil

ABSTRACT

PROCESS FOR OIL PRILLING UREA AND/OR UREA-AMMONIUM PHOSPHATES. IMPROVEMENTS INCLUDE INCREASED OIL REMOVAL FROM THE PRODUCTS BY (1) INCLUDING SMALL AMOUNTS OF ADDITIVES IN THE OIL PRILLING BATH, (2) SELECTING A PRILLING BATH OIL HAVING A LOW VISCOSITY, AND (3) WASHING THE OILPRILLED PRODUCTS DURING THE OIL REMOVAL PROCESS. METHODS RESULT IN INCREASED OIL RECOVERY AND IN PRODUCTS OF ENHANCED VALUE BECAUSE OF THE LOWERED OIL CONTENT. THE ENHANCHED VALUES INCLUDE IMPROVEMENT IN STORAGE PROPERTIES AND QUALITY OF LIQUID FERTILIZER MADE FROM THESE PRODUCTS. ADDITIVES INCLUDE CERTAIN FATTY ACIDS. WASHING MEDIA INCLUDE METHYL ALCOHOL AND PHOSPHORIC ACID. PRILLING BATH OIL IS SELECTED FROM NAPHTHENIC AND/OR ISOPARAFFINIC BASED HYDROCARBONS, FOR PREVENTION OF UREA ADDUCT FORMATION IN THE PRODUCTION OF LIQUID FERTILIZER.

DEFENSIVE PUBLIGATlON UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16, 1969, 869 0.6. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. The heading of each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally filed. The files of these applications are available to the public for inspection and reproduction may be purchased for 30 cents a sheet.

Defensive Publication applications have not been examined as to the merits of alleged invention. The Patent Office makes no assertion as to the novelty of the disclosed subject matter.

PUBLISHED AUGUST 31, 1971 RECVCLE FINES TO CUP OR MIXING STEP hDDlTlVE PRILLING RESERVOIR OR PRIMARY OIL REMOVAL OVERSIZE FINES szcounnnv OIL REMOVAL 1 mo SIZE 5EPARAT1ON I RESERVE OIL SUFPLY PRODUCT METHODS OF INCORPORATING ADDlTlVES N OIL PRILLING PROCESS FOR PRODUCTION OF UREA-AMMONIUM PHOSPHATES Process for oil prilling urea and/0r urea-ammonium phosphates. Improvements include increased oil removal from the products by (1) including small amounts of additives in the oil prilling bath, (2) selecting a prilling bath oil having a low viscosity, and (3) Washing the oilprilled products during the oil removal process. Methods result in increased oil recovery and in products of enhanced value because of the lowered oil content. The enhanced values include improvement in storage properties and quality of liquid fertilizer made from these products. Additives include certain fatty acids. Washing media include methyl alcohol and phosphoric acid.-Prilling bath Oil is selected from naphthenic and/ or isoparafiinic based hydrocarbons, for prevention of urea adduct formation in the production of liquid fertilizer.

Aug, 31, 1971 E, JORDAN A PRODUCTION OF OIL-PHILLED UREA-AMMONIUM POLYPHOSPHATE FERTILIZERS Filed Aug 28, 1970 3 Sheets-Sheet 1 UREA-AMMONIUM PHOSPHATE RECYCLE FINES ADDITIVE TO CUP 0R MIXING STEP BRILL CUP I I PRILLING RESERVOIR a CRUSHER W PRIMARY OIL REMOVAL OVERSIZE FINES SECONDARY A .r OIL REMOVAL AND SIZE 1 SEPARATION OR RESERVE OIL SUPPLY PRODUCT Fig. 5

METHODS OF BNCORPORATING ADDITIVES IN OIL PRflLLhNG PROCESS FOR PRODUCTION OF UREA-AMMONIUM PHOSPHATES Aug. 31, 197R 5, JORDAN T889fl12 PRODUCTION OF OIL-PRILLED UREA'AMMONIUM POLYPHOSPHATE FERTILIZERS 3 Sheets-Sheet 2 Filed Aug. 28, 1970 PROPORTION OF LAURIC ACID IN OIL, OF TOTAL WEIGHT EFFECT OF LAURIC ACID ADDITION ON OIL CONTENT OF 36-l8-O PRODUCT PRILLEDIN MINERAL SEAL OIL WZM A. 31,1971 J 5, JORDAN T889,012

PRODUCTION OF OIL-PRILLED UREA-AMMONIUM POLYPHOSPHATE FERTILIZERS Filed Aug. 28, 1970 3 Sheets-Sheet S mPUDQOmu wodmw C mmm m0 .PZmPZOQ =0 20 ZOCLQQQ 0.04 .EmOOm :0 m0 hummmm 

